小波降噪技术的Loran-C/INS组合导航技术研究  

Technique and Experiment of Loran-C/SINS Integrated Navigation Based on Wavelet’s Reducing Noise Technique

作　　者：林雪原[1] 徐宇茹[2] 

机构地区：[1]海军航空工程学院电子信息工程系,烟台市二马路188号264000 [2]海军航空工程学院科研部,烟台市二马路188号264000

出　　处：《武汉大学学报（信息科学版）》2007年第10期895-898,共4页Geomatics and Information Science of Wuhan University

基　　金：全国优秀博士论文作者专项基金资助项目(2000036);高校骨干教师资助项目(3240)

摘　　要：运用小波降噪技术提高Loran-C输出的信噪比,并进一步进行组合导航系统的滤波运算。基于实测数据的试验结果证明,采用该技术后,组合系统的各导航参数精度得到了显著的提高。Now Loran-C is one of important navigation equipments in ship, and Loran-C/INS integrated system plays an important role in naval ship in special period. In order to increase the integrated system＇s precision, the wavelet＇s reducing noise technique is introduced into Loran-C/INS integrated system to increase the signal-noise ratio of Loran-C, and then into Kalman filter, the dynamic and static experiment results based on practically measured data show that this method can obviously increases every navigation parameter＇s precision, and can remove the position fault of Loran-C in a short time.

关 键 词：小波分析 降噪技术 组合导航 

分 类 号：P228.41[天文地球—大地测量学与测量工程] U666.1[天文地球—测绘科学与技术]